A key element of the Affordable Care Act (ACA) is the expansion of Medicaid to nearly all individuals with incomes up to 138 percent of the federal poverty level (FPL) ($15,415 for an individual; $26,344 for a family of three in 2012) in 2014. Medicaid currently provides health coverage for over 60 million individuals, including 1 in 4 children, but low parent eligibility levels and restrictions in eligibility for other adults mean that many low income individuals remain uninsured. The ACA expands coverage by setting a national Medicaid eligibility floor for nearly all groups. By 2016, Medicaid, along with the Children’s Health Insurance Program (CHIP), will cover an additional 17 million individuals, mostly low-income adults, leading to a significant reduction in the number of uninsured people. However, the Medicaid expansion is voluntary for the states.